Southwest® flights from Harlingen/South Padre Island to Washington D.C. Reagan National from $170

Promo Code

Low fares from Harlingen/South Padre Island to Washington D.C. Reagan National

$

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 10/24/2026

One-way

Basic

From
$170
Seen: 19 minutes ago

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 09/30/2026

One-way

Basic

From
$175
Seen: 1 hour ago

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 10/22/2026

One-way

Basic

From
$195
Seen: 3 minutes ago

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 09/23/2026

One-way

Basic

From
$205
Seen: 57 minutes ago

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 11/24/2026

One-way

Basic

From
$210
Seen: 21 hrs ago

Harlingen/South Padre Island (HRL)to

Washington D.C. Reagan National (DCA)
Depart: 10/24/2026

One-way

Choice

From
$215
Seen: 19 minutes ago

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Explore flights from Harlingen/South Padre Island to Washington D.C. Reagan National

Sep 2026
From$175*
Seen: 1 hour ago
One Way/Basic
Oct 2026
From$170*
Seen: 19 minutes ago
One Way/Basic
Nov 2026
From$210*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $175
Displaying fares for September-2026
  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    SEP

  • HRL–DCA, 09/12/2026: From $296
    12

    Sat

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • HRL–DCA, 09/14/2026: From $285
    14

    Mon

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • HRL–DCA, 09/16/2026: From $217
    16

    Wed

  • HRL–DCA, 09/17/2026: From $265
    17

    Thu

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    18

    Fri

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    19

    Sat

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

  • HRL–DCA, 09/22/2026: From $217
    22

    Tue

  • HRL–DCA, 09/23/2026: From $205
    23

    Wed

  • HRL–DCA, 09/24/2026: From $240
    24

    Thu

  • HRL–DCA, 09/25/2026: From $260
    25

    Fri

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • HRL–DCA, 09/30/2026: From $175
    30

    Wed

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    02

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    03

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  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • HRL–DCA: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

    • Range$175-$296

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Valley International Airport
    Arriving at:
    Ronald Reagan National Airport
    Distance:
    1479 miles

    Route Information

    78† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 78 weekly flights from Harlingen/South Padre Island to Washington, D.C. (Reagan National) on Southwest Airlines.
    To find the lowest fares by day and time to fly Harlingen/South Padre Island to Washington, D.C. (Reagan National) with Southwest, check out our Low Fare Calendar.
    You can rent a car at Ronald Reagan National Airport book yours with your flight.
    Yes! Flights from Harlingen/South Padre Island to Washington, D.C. (Reagan National)—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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